Abstract
Highly reactive polyisobutylene (HRPIB) is the most important industrial polymeric material used as additives for lubricants, fuels and polymers. HRPIB is olefin terminated polymer preferred over conventional polyisobutylene due to its reactive nature. Present review covers synthetic processes of HRPIB, including the living carbocationic approach, organometallic catalyst systems and the widely explored carbocationic polymerization involving the chain transfer promoting catalysts based on Lewis acids. The complexes of Lewis acids involving ionic liquids show high potential in carbocationic polymerization of isobutylene to produce HRPIB with desired characteristics. Further advancements are focussed on the economics and environmentally safe approaches, assuring valued commercial process and HRPIB product.
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Karthikeyan, S., Gupta, V.K. Highly reactive polyisobutylene through cationic polymerization of isobutylene. J Polym Res 30, 337 (2023). https://doi.org/10.1007/s10965-023-03706-6
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DOI: https://doi.org/10.1007/s10965-023-03706-6